Four-ridge pyramidal horn antenna

A technology of horn antenna and pyramid, which is applied in the field of horn antenna, can solve the problems of uneven field distribution and low gain, and achieve the effect of uniform field distribution and high gain

Active Publication Date: 2019-10-11
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing horn antenna has the defects of uneven field distribution and low gain

Method used

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Examples

Experimental program
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Embodiment

[0022] like Figure 1-5 As shown, this embodiment discloses a four-ridge pyramid horn antenna, which includes a rectangular waveguide 1 , a pyramid horn 2 , a feed port 3 , two waveguide section ridges 4 and four horn section ridges 5 .

[0023] Wherein, the rectangular waveguide 1 has a cuboid structure, the length of the wide side of the opening end is 3 inches, the length of the narrow side is 2 inches, and the length of the rectangular waveguide is 1 inch. see image 3 In the orientation shown, the pyramid horn 2 is located below the rectangular waveguide 1 , together with it to form a pyramid horn antenna, and the feeding port 3 is located above the rectangular waveguide 1 .

[0024] Specifically, see figure 1 , the pyramid horn 2 has a hollow square truss structure and is made of metal. The length of the wide side of the diameter is 6.445 inches, the length of the narrow side of the diameter is 5.063 inches, and the length of the pyramid horn 2 is 10.743 inches. One e...

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PUM

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Abstract

The invention discloses a four-ridge pyramidal horn antenna. The four-ridge pyramidal horn antenna comprises a rectangular waveguide, a pyramidal horn and a feeding port, wherein the rectangular waveguide is of a hollow structure, one end of the rectangular waveguide is connected with the feeding port, the other end of the rectangular waveguide is connected with the pyramidal horn, the pyramidal horn is a hollow rectangular terrace and comprises a waveguide segment ridge and horn segment ridges, the waveguide segment ridge is arranged in the rectangular waveguide, one end of the waveguide segment ridge is contacted with the feeding port, the other end of the waveguide segment ridge is contacted with the horn segment ridges, the horn segment ridges comprise an upper group and a lower group,and each group comprises two branches arranged at two wide walls of the pyramidal horn in a herringbone shape. By optimizing each parameter of a ridge, more uniform field distribution than that of atraditional horn can be achieved, so that higher gain is achieved.

Description

technical field [0001] The invention relates to a horn antenna, in particular to a four-ridge pyramid horn antenna. Background technique [0002] The basic form of the horn antenna is formed by gradually expanding the opening surface of the rectangular waveguide and the circular waveguide, which improves the matching between the waveguide and the free space, and makes the reflection coefficient in the waveguide small. The horn antenna has the advantages of simple structure and easy control of the pattern, and is often used as a standard antenna in antenna measurement; a unit antenna of a phased array; a feed source of a large radio telescope, etc. [0003] The existing horn antenna has the defects of uneven field distribution and low gain. Contents of the invention [0004] Purpose of the invention: In order to overcome the defects of the prior art, the present invention provides a four-ridge pyramidal horn antenna, which has the characteristics of uniform field distribut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q13/02H01Q1/50
CPCH01Q1/50H01Q13/0275
Inventor 李文彦黄晓东金秀华
Owner NANJING UNIV OF POSTS & TELECOMM
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